Machine for knotting warps



Nov. 1s, 1930.

U. BISCHOF MACHINE FOR KNOTTING WARPS Filed May 29, 1929 5 Sheets-Sheetl Nav. 18, 1930. u. BiscHoF 1,782,162A

MACHINE FOR KNOTTING WARPS Filed May 29, 1929 5 sheets-sheet a La ZQ- ZF"I /a /Nvev a2 NOV. 18) 1,930.7 U, B|5CH0F 1,782,162

I MACHINE FOR KNOTTING wAR'Ps Filed May 29, 1929 5 Sheets-Sheet 3 /NvewTall Www/L Nov. 18, 1930. u. BiscHo'F MACHINE FOR KNOTTING wARP FiledMay 29, 1929 5 Sheets-Sheet 4 v- By Nov. 18, 1930. U. BiscHoF. l1,782,162

MACHINE Foa KNOVTTING wARPs Filed May 29. 1929 A5 sheets-shed 5 a9 19sve v Vas Patented Nov. 18, 1930 A 'f 1,782,162g

l ULnicn Biscnon, or AARA, SWITZERLAND 'MACHINE iron KNOT'TING vviinrsminiemen/nea May 29, 192e, sei-iai, No. 367,024, @11min switzerland'o'ceober 4, 1928.

Machines 'are already known for tying the ends of warp threads', whereinthe warp i threads of the oldwv'arp and of the new Warp arehorizontallyv clamped in. the machine.

5 lhese machines however have the disadvan tage .that the device forclamping rthe warp and th'e knottingldevice are arranged wholly orpartly above the warp, and Athereby reiiy der impossible 'the .free .andunhamperedacy 1e cessibili'tyfottheplane of the warp foriquick clampingof `the .warp and av continuous, con# stant and complete supervision forcontrol-r ling `purposes during 'the tying.

ln other known machines the .old andnew warns :are clamped in a verticalposition, but these nla'chines havethe disadvantage that the kn'ottingdevice is arranged above the ywarp and'engages With ythe latter for ty-ringpurposes on both sides, thereby prevent'- ing satisfactory oversight'of the warp during the tying, `so that"the"tying of the 'correctassociatedthreads cannot possibly be controlledat the right time. Faultsthat are discovered' too late may however occasion great losses of time.Moreover the clamping of the old and 'new warps isin such machines verycomplicated, since kthe grippingbars supported by yrotatably'arrangedlooked carrying arms have to be unlocked beior'e the u clamping of theavaro, rocked downwards,

and brtni'ght backihto the upright position after' the clal'npi ng and'locked again. This arrangeinentis lalso known in `the caseot`donblemachines coupled together.

vWith :this arrangement, however, an nninterrup'ted automatic transportof the knotting device `and -a successive 'tyln'g'of the warp clamped in'a Splurahty of coupled machines,

ting device must be transferred fromfone machine tothe otherby hand',and this involves a preliminary partial dismounting of the knottingl-apparatus, which v'has to be re-assembled aiter beingtransferred,thereby occasioning a goodV de'al rvot Work and loss; of time.

l/iith .the machine ii'orining the, subjectinatter'of theYpresentinvention, the said dis advantage ot the machines hitherto knownareobvi'ated owing to the thaty the deis lprecluded. lVith thes'eymachines the knotr` vice for clamping the old'and .new warps and thedevice for tying the ends of the threads are Vso* arranged that readj-,accessibility,

which is necessary for the quick clampingof. rthe warp, 1s obtained'owing to a free and unh'amperedwarp plane, whichrenders possible yacontinuons, constant and complete oversight forcontrolli'ng purposes ofthel ty-v ing of the warp and of the Warp threads va1- ready knotted, insueh'a way that injone working operation an'dwithout interruption allthe threads 'of wai-ps of any desired breadth cancbe'tied, the knottingdevice, after the vknotting'thereof has ybeen eiected, being capable ofbeing transferred by an' ninterru-oted automatic transportingmeans rto asecond Vmachine coupled tothe first, "for the .purpose of tying'warjthreads clamped on rthe secondmachine, during Whichtime fresh Warps canbe clamped `on the iirst inachine for tying purposes, therebyincreasingtheontpntiof the machine. Y. f According to the present invention thismachine is distinguished by the fact thatv the clamps that receivetheifresh Warp' are "carried by carrying members provided with runningrollersarranged underneath the warp planes, and forni, together with thelat-ter, a travelling Warp carriage, that parts of these carryino.members extend -linde'rneath a. driving sha t arranged `in thelongitudinal direction' between the clamps and having adrivingconnectionwith knotting device, 'that thisy shaft land `the knotting device are arranged inside the travelling Warp carriage, that `the driving ot. allthe knotting 'iniplements is effected from below, and that.y the warpcarriage travelling on rails,` is 'automatically displaceable vWithouthinderance in the longitudinal direction by a machine pro-V vidediwith amounted warp, towards onev` or morelnachines coupled with the former,for .the tying of the previously prepared and j clamped Warns, the wholein suclia way that frality of machines coupled'togethcr.

Preferably also the runningv rails of the knotting carriage, as well asthe two toothed racks, which are provided for the purpose of displacingthe knotting device, with its carriage, relatively to the warp, and `for1 the purpose of compensating one warp relatively toA theother bydisplacement of the warp carriage, are arranged inside the warpcarriage, the transverse connection of the bows being Y preferablylikewise constructed continuously underneath the running rails landracks, in

such away that the carriage, with the knot-- ting d evicc, can advanceuninterruptedly an d autom ati `ally from one machine to the other .inthe entire longitudinal direction for the purpose of successively. tyingthe warp clamped upon' each machine. Y Y

The rollers of the warp carriageare pref-v erably arranged directly onthe bow there-A being in section on the line -min Fig. 27

Figure 4 is a front elevation of the warp carriage,

Figure 5 shows the knotting device, Vwith the driving shaft, in frontelevation,-

Figure`6 shows a part of the'warp carriage. p Figure 7 is a frontelevation of the keys, warp stop motion and the coupling and ratchetlever mechanism associated therewith. Y

Figure 8 is a plan of thekeys, warpy stop motion and the coupling andratchet. lever mechanism associated therewith;

Figure` 9` is a side elevationof the threadremoving means. n Y

Figure 10 is a front elevation of the threadremoving means.`

Figure 11 is a'plan of the thread-removing means. Y Y

Figure 12 1sv a front elevation of the arrangement-of the needle and itsoperating members. v

Figure 13 shows the shears with the clamping needle in side elevationand with threads lying in the clamping needle.

vFigure 14 shows the shearsin an almostV L' ing needle device and Figure18 is a front elevation thereof.

Figure 19 is a side elevation of the knetter with binding bill and rack.

Figure 20 is aA front elevation thereof.

Figure 21 is a front elevation of the bush with toothed wheeland thelower partof the binding bill also aV plan thereof and a side elevationand plan of the upper part ofthe binding bill.V

Figure 22 is a front and side elevation of the needle.

In Figures 1 andv 2, 1 denotes Ythe side frames of the machine, whichare stayed by connecting rods 2, 3, 4 and 5. To the side frames aresecured ruiming rails 6 and 7 upon which are mounted rollers 9 and 1t)rotatably'arranged on a knotting carriage 3 to facilitate thedisplacement thereof. r1`he driving shaft 11 is journalled in bearings12 secured to the side frames andvcarries at one` end al driving pulley13. Theshaft 11 carries a toothed wheel 14 5), which meshes with asecond toothed wheel 15, of which the shaft 16, arranged on theknottingcarriage 8, carries the pulleys with the cam discs, not shown,designed for actuating the knotting implements. The driving shaft 11 hasa groove'17 (Fig. 3), in which there engages a key 18 (Fig. 1) of aclutch19 (Fig. 5) arranged beside. the wheel 14. On the knot-tingcarriage is arranged a shaft 2O (Figs. 1 and upon which is rockablymounted a twoarmed lever 21, one arm of which engages with the aws 22 ina groove 23 in the clutch 19, and the other arm of which is constructedin two parts. The part 24'is slidably and clampably `arranged on theother part of the lever 21 by means of a slot and a screw 25 1), thepart 24V being brought into the lowest position for the purpose ofpushing theV knotting carriage backwards under the previously mountedfresh warp of the first machine by hand, when the knotting carriage isto be brought into its lateral initial position. The part 24 ispivotally connected with a feeler 27 guided in a support 26. The doublearin 2l also connected with a braking arm 28 (Fig. 1), therroller 29 ofwhich is drawn against a cam disc 30 by a spring 31.

On one end of the shaft 20 is rotatably arrangeda toothed wheel 33 (Fig.1 meshing with a rack 32 secured to the si e frames, while upon theopposite side of the shaft 2() is provided a toothed wheel 36 meshingwith a rack secured to downwardly bent bows 34 (Figs. 1, 2 and Bearingupon these wheels there are mounted loose upon the shaft 2O ratchetlevers 37 and 38, of which the pawls V39 and 40 each engage in a secondset of teeth on the toothed wheels 33 and 36.

The rollers 41 and 42 of the ratchet levers 37 and 38 arepressed bysprings 43 and 44 on the same cam, not shown, of the disc 45. Int-hesupport 26 (Figs. 1, 7 and 8) is journalled a .shaft 46, on one end ofwhich is fix-l edly 'mounted a 'lever which is pivotally Y connectedby'`a'ten'sion rod 48 withther ratchet lever 38, while upon the other sideof the shalit46 is seeu'fred "alever A:49.* Beside this lever isrockably mountedupon :the shaft 46 kla ylever-50, rwhich is likewisepivotarlly lconneeted byfa tension rod 51with thel ratchet lever v37.Keys-52 and 53 (Figs. 1,7 and8) are roclrably arranged iin'ia support 54and constructed Awith projections '55,an-d 56, and Lone end of each oi`the lfl'evers49-and50 comes to lie under these projections.. The `keys52 and 53 bearjo'n the warp threads and assume during the tying of thethreads Va variable position, in 'such awa-y that ythe projections ijandof lthe lrcys stand at times in front ot'theends'of the levers 49and 50,and thesev levers are therefore no longer obstructed in l 4 1 theirfreedom of niovement,and the ratchet mechanisms connected rwith themcome intor operation, on the lone handfor the purpose of displacing thelnotting carriage relatively to the warp and on the other 4handfor thepurpose of displacingtfhe vwarp carriage in order to equalizethecorrectfposition of the twow'varps one above lth'e other. Under thesecircumstances the lreys 52l and '53 bearing upon the threads, owing tothis displacement of the knottingcarriage',return to the initialposition, and the'operativeness of the ratchet vmechanisms "and of the`'levers y49 and 50 is thereby n'also'interrupted again, and this is nconstantly repeatedin` an alternating 'man ner.

kThe grips 57 and 58 (Figs, land 3) ,known inthe'1'nselves,-arecarried'by'the downwardly bent'bows'34,the latter V:being connected withone another" a rod 59,'-and `forniingtogether withfrolle'rs 60rotatablyarranged upon the pivot. 61"`s'ecu`r`ed lin the' bows, `atravelling warp carriage. i'The grip'57 is'movably arranged 'in aln'ownfmanner, being carried by a shaft 62 Ajournalled yin the 'bows34anda support 63 fixedlyanounted upon it, a crank .Y 64 (Figs. 3 vand4)fbearing on each lside against a `stop oneach support63. Underfne'aththe grip 58'is provided a rod 65' (Figs.

`1 and 3) `l4as a connecting member for the rbows 34. The gripy 66(Figs, 1 to 3) bears upon the'two supports67, which are providcd withracks 68, and which'are displaceably supported in supports 69 'securedvto the side n frames 1 ofthe machinean'd are secured by screws 70.Inthe side :trames 1 isour'nalled a shaft`71 (Figs. land 2) ,uponwhichis tixedly mounted a hand lever 72, while a shaft 7,3 is immovablycarried' bvlevers 74 mounted. fast on the3shatt`7'1.L lFurther levers 75located` upon (the shaft 73I are two-armed levers and arearranged'slidably uponr the shaft 73, in such a way that downwardlydirected arms otthese levers" engage over vthe shaft :71, whereby theselevers "are guided. Th'eupper arms `of theflevers 75"carry the beamy76,L4 with the fresh lwarp'761. ,"On'fthe *s'ide'lframes 1 (Fi-gs.and'2) are secured supports 77 Lcarrying the beam 78 with the old warp`781, theharness' 79 provided with the fold warp 'being'suspended fromholders 80. Upon a bar' 81 vsecured vto the supports 77 two `holderguides 82 are longitudinally displaceable,"in'which the holders 80 areso arranged as tobe adjustable in height by lmeans of la screw 83 ineach case. Above a cylinder- 84,

"which is rotatably and removably arrangedA Vinthe supports 77, the oldwarp carried by Ithe harness'arnd gripped ina known manner r 1in thespace 78`is guided `forward for tying.

, `tube holder 85 (Figs. 5, 9, 10`and 11) with pin 86 and cams 87 ,isinserted into the.

bore of av boss 88 (Figs. 1, 3 and 5), the cams 87' r'engaging ink aslot inv this boss=88,"and thereby giving the correct position to thetube holder .85. In the tube holder are rotatably arranged tubes 89, 90,91 and 92, in the bores of which :so-called cords or vvlease bands 93(Fig. 11")Y are drawn-through in a known manner, the warps lyingcros'swise vabo've'the ',latter, andthe threadsy being taken away1ndividually. fUpon lthe tubes aresecured le.

vers 94, 95, 96 and 97, and pins 98,929,100 and 101' rotatably arrangedthereineng'age in a common disc 102' rotatably arranged upon the holder85, and set longitudinal ribs 103 constructed on the tubes foroscillation during a rotation of the said disc. 4For vthe :rotating lotthis disc 102 there engages in a slot'therein a pin 104 (Figs. 3 and 5)on a lever 106 arranged on the -knott-ing carriagev 8 and rotatable upona pin 105', whilea roller :107 arranged'on the other `end of the levery-tatably arranged on the knotting carriage 8 'upon alpin v116 engageswith a prism 117 mountedloose upon a pin 118 in a slot inthe tappet 114,and carries at the other end a roller 119,'whichbears upon a disc 120Xedly connected with the toothed wheel 109, so that yduring therotationof this disc, owingto a cam groove, not shown, arranged thereon,a longitudinal displacement of the thread divider is elil'ected. A lever122 (Figs. 3 and 5) rockablyparranged on the knotting carriage l 8 upon'a pin `121,`isforkedat'one end, apin 123 providedon the tappet114engagi1'1g in the slot betweenV the prongs of the fork. r he otherend otthis lever 122 is provided with V`anol'ler `124, 'which bears onfa cam groove,

The disc k'108 is1..

.not shown, in thedisc Duringthe rotation of this disc the` threaddivider is set in oscillation. On the knotting carriage 8 a rod 125,with a shear cutting plate 126 (Figs. s and 16), is verticallydisplaceable, the said rod being provided at the other end ,Witha4tappet 127 mounted fast thereon and 'with a pin 128 and a pivotedtension rod 12,9. The latter is pivotally connected with a lever 131rockably arranged upon a shaft 130 and with a pivotr132. The lever 131hasaroller 133,V

. `which engages in a cam groove,not` shown, ina. dise 134, the knifeplate 126 being moved ner, a tappet 137 beingniountedfast on the otherend of their d and bein@` ivotall e P Y,

eonneetedby a pivot 138 with a tensionrod 139. Upon the shaft 130, whichis xedly ar- "the rod 149, a thread grip.

ranged on the knotting carriage, is mounted a rockable `lever 14()provided with va roller 141, which engages in a cam groove, not

shown, in the disc 134, and, during one revolution of the latter, thelever 140, pivotally .connected with the tension rod V139 by the Vpivot142, likewise moves the knife plate 136 up and down in'such a way thatduring the displacement of the two knife plates 126 and 136 the threadsare cut off as if with shears.

A support 143 secured to theknot-ting carriage 8 carries a two-armedlever 145roekably mounted upon a pivot 144, one -arm of the said leverearryingalever 147, which is likewise rockably arrangedupon a pivot 146(as shown in Figs. 3, 5, 17 and 18). i The lever 147 is provided .withatubular hook needle 148,`ivhieh is secured'in the lever 147, and in thebore of which a rod 149, provided with a positioning ring 150 andsubjectto the pressure of a spring 151is longitudinally slidable. Thehook needle `148 forms, `with The lever 147, 'with the roller 14,8, andthe lever 145, .with the` roller 148", are connected with ons` anA otherby a sjgiring'152, whereby these rollers are pulled. against `the canigrooves, not shown, in dises 153 and 170. A lever 155 rockablymountedlupon a pin`154 on the lever 147 (Figs. 3 and 17) engages-with a roller156 in a cani groove not shown, in a` disc 153, and the hook needle 148,during one revolution 'of the disc 153, executes a vertical andoscillating movement, the rod 149 likewise executing a reciprocatingmovement in the tubular hook needle, for the purpose of seizing andclamping` the thread and supplyingit to the binding bill.

On the knotting carriage is rotatably ai ran-ged a binding bill 157(Figs. 3, 19, 20 and 21), which is mounted fast upon a bush 1591provided with teeth 158, in the bore of which arranged a longitudinalrod, with the (iii bindingbill 157.. The other end of thisrod binding b"slidable uponthe fixed ring 160, a second spring 163 pressing a shoulderof this bush against a shoulder o n the ring 160, and there- Ybypressing the jaws of the binding bill iirmly against one another.` rlherotating of the fbindingbill is effected by a rack 164 (Figs.

119 and 20), which is arranged on the knotting carriage and which isguided in bearings 165 and 166, and is provided with a pin 167 (Fig.with a prism 168. The latter engages in ,Y

the fork of a twonrined lever 169, which ii i `V'iclihly arranged uponthe pivot 130, and

enoages with a roller 133 in a cani groove,

F :j 1. irtshown, in a disc 170. A lever 17.1., (14 ig.

-) rockably arranged uponrthe pivot 144,

bears by means of avroller 172 upon the cam goove of dise 153, so thatduring one revoutioii "i the discs 176, and 153 the rotation of the binng bill and the opening and closing thereoi` are effected by thedisplacement of the ll rod, for the purpose of execut- :ig of thethreads.

needle 172 (Figs. 3, 12 and 22) is mounted n a holder 173, which issecured to a pivot 174 and oscillatablyarranged on thev Knott-ingcarriage, axtwo-arnied lever 17 5 bing roel-:ably mounted upontlie bossof the knojtting carriage, and one arm of this lever servino" as atappet for theneedle 172. rllhe other arm of the lever 1'75 is pivotallyconnected by a pivot 176 with'the tension rod 177, (shown in Figs-3, 5vand 12).y A pivot 178 conneetsthe rod 177 with a lever 179 mounted upona pivot 180 on the knotting arriage, the roller 181 of which bears upona cani groove, not shown, in a disc 182, yand dui` ing the rotationthereof sets the 172 in oscillation.

Upon t-he knotting` carriage is secured a support 183V (Figs. 3, 5 and12), in which is VI]ourimlletl a shaft 184 carrying alever 185.Tlielever 135 engages between a ring` 186 ,mounted `fast unen the shaft174 and the holder 173, thereheing mounted fast upon the other side ofthe shaft 184 alever 18.7, of which the pin 188 engages with a prism 189in a slot in a lever 190. The latter is oscillatvably arrangedV uponVthe shaft 130 and engages, with a roller 191, in a cani groove, not

shown, in a disc 192, which, during its rotation, `imparts tothe .hookneedle 172, besidesY Vthe oscillating movement previously menhookneedleV an angle 197 secured to thetube heldereiieasing@ a e1fi0icinihe-vheel .196; and thereby 'holding the latter fast axially(Figs. 3, 5, 9v,.10and11).`r Upon kthe .other side kof the shaft 194i`is secured a chain wheel-.198, which is connected by a chain 1,99I withasecond m1661200 (le 5.). mounted astupontlileboss. of the dis@ L92-Durlig 011@ tevoluton 0i the wheel 200, va hook 600 Fig-1Q) secured tothe toothed wheel 198 executes an oscillating n'ioveinent and; therebydraws away the cut thread ends lying upon .the tubes 89,90, 91 and 92. Astop motion 201 (Figs.I 9 andr 10) engaging in the warps 76; and 7 8" isrotatably arranged on thetubeholder 85 upon a pin 202, andthisstopmotion, when one thread. misses,

is pulled from 'the' other ofthe two, threads to be tied on to one sideor the other, that is downwards or upwards, and thereby'renders Lpossible the displacement ofthe feeler 27 and` londy grip. 57 vfrom thefront being rotatably mounted upon the shaft 62 and .the clamped warp 76being capable of beingbroughttothe desired tension by rotating one `of`vthecranks 64 arranged on" both'side's of the grip 57 A'lhereuponthefront grip 66, which has beenY brought into the lowest Lposition for anunhampered clamping of the previously: de'n scribed warp 76' rotating acrank 640 (Fig. 2.) ,is raised into theupperinost normal position andlocked with the screw 70.@ One end of the old warp 7 8 is clamped andygripped in a known manner to the rear, clamping beam 78 rotatablyarranged on the machine, while the other end of this warp is slidforwardover the rotatably arranged? roller 8 4 ai'idclamped and gripped in thefront grip G5, thiswarp lying at a slight distance above the former andbeing capable of being placed under tension in case of need by rotatingthe clamping beam 78, which is provided with a ratchet wheel 641, and aratchet lever 642 shown in Fig. 2. The clamping of the two wai-ps isthus eected in a horizontal position one above the other, an easyclamping and gripping of the warps in the grips 57, 58 and 66 beingobtained from the frontof the ina-chine in consequence of the absence ofall project-ing and obstruct-y ing parts above the warp, and a readilyacces sible and convenient clamping and gripping of the warps intheclamp being obtained from "-f` the front of the machine, besides-'acomplete supervision over the warp. Afterthe clamping of the warps, theknotting carriage 8 is pushed into the initial position on the right(Fig. 2), as seenk from the front of the inachine, against the .warps76fand 78', the

yknown cords 93,localted in the Warps being pulled in a knowninannerthrough the bores of the engaging tubes 89 to 92 of the knottingdevice and; beingfastened outside. themachine, rlhe knottingdevice isthereupon set iny operation, the threads of the old and new waips to betied beingtaken awayone after the other by special means.v mentioned inmy @Ofrending aP May 29', 1929 ((iase C), and these threads beingseizedl bythe knotting implements, whereupon a linking and knotting iseffected in the manner described in my specification No. 367,025 filed.May 29., 1929 (Case B), and the. tied threads or subsequently laid downin succession.

If the clamped warps in a plurality of inaf chines coupled together areto be tied in succession in"l the same directiony of feed., the

knottingcarriage may be very easilyy broughtr I viously brought into thelowest position` y rotatingv the driving wheel by hand, "afs well'as 1`the lever 24 by looseninggthe fastening screw 25, thefeeler 27beingthlown over, and there-V by vassuming a downwardlyhanging positionfor the purpose of pushing through the knit- `ting-carriage, after( the,removal ofI the, tube e d `holder mounted thereon, and reversalk of twopawls39 and 4:0, underneath a previously reclamped warp, the toothvwheel provided on the driving shaft withr a key engaging in thelongitudinal groove. in the latter'be'ing shifted, together with theknotting carriage, so that the actuationof the knotting implements canbe effected from the saine. driving shaftover the entire longitudinaldirection of a plurality of machines coupled together.

lit will be clear from the foregoing that from the special constructionand arrange- ,ment/ ofthe. warp carriage, the bridge pieces ofthe bowsv34 passingthrough underneath the driving shaft, vand this shaft,y theknotting device', the running rails for the knottingk carriage. and theracks for thedisplacement 'of' the warpY carriage and the knottingcarriage beingarranged withinthe travel: ling' knotting carriage, anunhin'dered. automatic displacement ofthe knottin'g carriage, with` theknottin g device, 'is-obtained without .iiiterru'ption fromvv onemachine to a second effected.

ting `carriage in conjunction with the driving shaft'and the sliding anddisplacing members,` togetherwith the special arrangement-of thedrivingmembers for actuating the implements for displacing the knottingand warp carriages,`as well as those for the a utomatic throwing of thelinotting carriage out of action, aswellas the implements for takingaway the threads from the warp, and

those for linking and tying thethreads, "there is VobtainedV underneaththe Alatter and the warp a free andreadily accessible 'warp plane, whichon the one liaml'rcnders possible a quickclamping of the warps in thegrips, land on the other hand a Vcontinuolls,

constant .and complete supervision for the control of the tying of thewarp, and of the warp threads already tied, a single completely freewarp plane being obtained in the entire longitudinal direction ofaplurality of machines coupled together, which facilitates the operationand supervision by the workers'in anexceedingly advantageous manner.` yy' -f What I claim' is zf- -Y "1.' A machine for knotting a fresh warpto an existing Vvmrp,1which warps are clamped and secured in grips,comprising grip Vcarrying members `which are ycom Y wheelsV rotatablymounted on the knotting carriage and meshing vwith the said racks,ratchet wheels associated with the toothed wheels, and ratchetmechanisms for rotating on the carrying members for the knottingcarriage to travel on, knottingimplements mounted on thelrnottingcarriage in driving relationship with the driving shaft, means forautomatically displacing the knotting carriage in a longitudinaldirection from one machine to another for the tying of the previouslyprepared and clamped warps, a toothed rack fixedly mounted upon the mauchine, a second toothed rack fixed to the warp carriage and displaceablewith it, both of the said toothed racks being arranged inside the warpcarriage in such a way that the transverse bridge pieces of theYdownwardly bent bows arevcontinuous underneath the racks so that oneand the same rack is made continuous for a plurality of machines coupledtogether, toothed wheels rotatably mounted on the knotting carriage andmeshing with the said racks, ratchet wheels associatedwith the toothedwheels, ratchet mechanisms for ro tating the ratchet wheels and. therebydisplacing the knottin carriage and the 'warp carriageautomatically anduninterruptedly, implements'for throwing the lznotting carriage out ofoperation, implements for taking a #aythe threads from the warp, andmeans for actuating the knotting implements, `all the Vactuatingmeansfor the knotting. carriage disconnecting implements, thethrea'dfremoving implements7 and the knot ting implements, and thedisplacing means for the warp carriage and the knotting carriage, beinglocated below the said implements and carriages and below the planes ofthe warps for rendering possible an unhampered quick clamping of thewarps and a con tinuous and complete `supervision of the warp whenclamping and tying the same, also an easy control of the threads of thewarps already knotted and over the entire longitudinal front evenwith aplurality of machines coupled together.

In testimony whereof I have atiixed my signature.

ULRICH BISCH OF.

the`ratchet wheels :and therebydisplacing` Y the knotting carriage andthe warp Vcarriage automatically and unmterruptedly.

2. 1A machine for knotting a fresh warp to an existing warplyingopposite to it in a different horizontal plane in a plurality ofmachines coupled together, with clamped warps, comprising .carryingmembers con structed as downwardly bent bows .arranged below the planesofthe warps,v grips carried by the carrying members for receivingthefresh warp, the grips Aforming with thecar-v V rying members atravelling warp carriage, a

driving shaft arranged ina longitudinal di- Y rection in the warpcarriage' between the grips, transverse bridge pieces forming lpart ofthe carrying members extending .through underneath the drivingshaft, alrnotting carriage arrangedV in the `warp carriage.v rails

